Clamp



FIG. 1 is a top, front and left-side perspective view of a clamp showing my new design;

FIG. 2 is a top, rear and right-side perspective view;

FIG. 3 is a right side elevational view showing the jaw in a closed position;

FIG. 4 is a front elevational view showing the jaw in a closed position;

FIG. 5 is a rear elevational view;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a clamp, as shown and described. 